![]() ![]() If there is an issue with any hardware component of the computer, the POST will display the associated error message and give out a certain number of beeps through the buzzer for the user to use and troubleshoot the problem. Power-On Self Test (POST)īIOS launches the POST process first to ensure that all attached hardware, such as the hard drive, RAM modules, CD ROM, etc., are all functional before proceeding further to boot up the OS. Let us discuss the various functions and roles of BIOS that make it an integral part of the computer system. We mentioned earlier in the article that there might not be a functional computer without a BIOS. Use the associated hotkeys to access and modify BIOS settings while the computer is booting up (before POST). ![]()
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